Data SheetTable of ContentsChapter 1. PICDEM™ System Management111.1 Introduction111.2 Highlights111.3 PICDEM™ System Management Kit Contents111.4 PICDEM System Management Layout121.4.1 Board Features121.4.2 Board Connections12Figure 1-1: PICDEM™ System Management Board12Figure 1-2: PICkit™ Serial Analyzer Pinout131.4.3 Heating Element141.4.4 Board Options141.5 Quick Start Guide141.5.1 Demonstration Program141.5.2 Real-Time Clock: Address 0xA215Figure 1-3: Real-Time Clock151.5.3 Analog-to-Digital Converter (ADC): Address 0xA415Figure 1-4: Analog-to-Digital Converter (ADC)151.5.4 Serial EEPROM: Address 0xA816Figure 1-5: Serial EEPROM161.5.5 Thermal Management: Address 0xA616Figure 1-6: Thermal Management161.5.6 General I2C17Figure 1-7: I2C™17Chapter 2. Background192.1 Introduction192.2 Highlights192.3 PICDEM™ System Management and PICkit™ Serial Analyzer192.4 Fan Speed Control192.4.1 Two-wire Fan192.4.2 Three-wire Fan20Figure 2-1: three-Wire202.4.3 Measuring the Speed of a Two and Three-wire Fan20Figure 2-2: Pulse Stretching202.4.4 Four-wire Fan Control21Chapter 3. Troubleshooting233.1 Introduction233.2 Common Problems233.2.1 Serial Communications does not appear to be working233.2.2 Microcontroller does not run after programming using the MPLAB® ICD 2233.2.3 The fan is not providing proper feedback233.2.4 Heating element is not heating233.2.5 Temperature is not changing23Appendix A. Hardware Schematics25A.1 Introduction25Figure A-2: Schematic Sheet 226Appendix B. Register Maps27B.1 Introduction27Worldwide Sales32Size: 600 KBPages: 32Language: EnglishOpen manual